SESINO history: over 100 years of heat‑exchanger innovation

By the mid-1970s, Costante Sesino had become a leader in the production of air‑oil and water‑oil heat exchangers for hydraulic systems.
The company almost completely phased out automotive radiators and focused its resources and expertise on heat exchangers for industrial and mobile equipment, offering high performance and reliability.

Production began on a new generation of aluminium air‑oil heat exchangers, designed to ensure lower weight, higher thermal efficiency and improved corrosion resistance compared to traditional brass/copper versions.
Over the years, this technology established itself as the reference standard and led to the gradual replacement of previous production, paving the way for increasingly compact and high‑performance ranges of air‑oil heat exchangers.

The combination of quality, durability and service enabled Costante Sesino to expand its sales abroad, building a commercial network present in almost all continents.
Sesino heat exchangers thus entered highly demanding hydraulic and industrial applications, confirming the company’s role as a technical partner rather than a simple supplier.

Driven by continuous growth, Costante Sesino moved to its current headquarters in Gessate, just outside Milan: a modern facility with around 4,000 m² of production area.
The new site integrates offices, production and quality control, and is equipped with advanced technologies for the design and manufacture of water‑oil, air‑oil and shell‑and‑tube heat exchangers for increasingly demanding applications.

Sesino introduced customized heat exchangers on a structured basis, engineered for specific applications and machines with particular dimensional and performance requirements.
The ability to develop tailor‑made heat exchangers strengthened relationships with manufacturers of hydraulic and industrial systems, creating dedicated solutions for increasingly severe operating conditions. 

In 2011, Sesino obtained ISO 9001:2008 certification, formally acknowledging the effectiveness of the company’s quality management system.
This milestone confirms the robustness of the processes and standards applied to the design and manufacture of heat exchangers, ensuring control, traceability and safety throughout the entire value chain. 

Sesino obtained OHSAS 18001:2007 certification, which formally attests to the robustness of the company processes and the standards applied to the production of heat exchangers. This achievement demonstrates Sesino’s constant focus on control, traceability and safety, strengthening customer confidence in its products and opening new opportunities in more regulated markets.

Sesino’s offering was expanded with high‑performance heat exchangers for high‑pressure applications and particularly harsh environments.
Careful attention to materials, treatments and flow configurations made it possible to extend the operating life of heat exchangers even under extreme thermal and mechanical conditions.

 

In 2019, Sesino celebrated its 100th anniversary, marking a century of experience in heat exchangers and oil cooling.
For the centenary, the brand identity was further reinforced and a dedicated communication campaign was launched as a pledge for the “next 100 years” of excellence in heat exchanging.

Sesino turned a challenging year into an opportunity for renewed growth, investing strategically in product innovation, automation, processes and in‑house expertise.
Research activities on heat exchangers were intensified, with a particular focus on efficiency, reliability and integration into increasingly compact and high‑performance systems.

In 2021, Sesino introduced the new MSG series of air‑oil heat exchangers, engineered to deliver high thermal efficiency in compact dimensions.
The advanced internal geometry and optimized flow paths allow for improved performance at the same air and oil flow rates, reducing energy consumption and noise levels in customer systems.
Thanks to a design focused on sustainability, the MSG series is engineered for longer service life, easier maintenance and improved overall efficiency of the system in which it is installed. This new technological step further consolidates Sesino’s role as a partner for more efficient and responsible cooling solutions, aligned with the needs of both OEMs and end users.

Sesino continues to invest in new families of air‑oil, water‑oil and shell‑and‑tube heat exchangers, with versions dedicated to emerging sectors such as alternative energies and to growing international markets.
Ongoing product innovation and the expansion of the commercial network further strengthen the company’s positioning as a global partner for thermal exchange in hydraulic and industrial applications.